Acquired by the Landsat 7 satellite more than 20 years ago on Sept. 3, 2000, this image is of Greenland’s western coast and the small field of glaciers that surrounds Baffin Bay. This is a false-color composite image made using near-infrared, red, and blue wavelengths. 20多年前的2000年9月3日，陆地卫星7号拍摄 […]
2021年9月15日 Cyclone Paths on Planet Earth Image Credit: National Hurricane Center, NOAA, NASA; Processing: Nilfanion (via Wikipedia) Explanation: Where on Earth do cyclones go? Known as hurricanes when in the Atlantic Ocean and typhoons when in the Pacific, the featured map shows the path of all majo
Inside the Integrated Processing Facility at Vandenberg Space Force Base in California, the Landsat 9 spacecraft is moved into position for encapsulation on Aug. 16, 2021. The two halves of the United Launch Alliance (ULA) payload fairing will surround and encase Landsat 9 to protect it during launc
2021年9月5日 Earth and Moon Image Credit: NASA, JPL, Galileo Project; Processing & License: Gordan Ugarkovic Explanation: The Earth and Moon are rarely photographed together. One of most spectacular times this occurred was about 30 years ago when the Jupiter-bound Galileo spacecraft zoomed past ou
The International Space Station was orbiting 263 miles above the southeast coast of Brazil on the Atlantic Ocean into an orbital sunrise when this photograph was taken. The orbital platform has been continuously occupied for more than 20 years and hosts a variety of research and experiments that ben
This image, taken from aboard the International Space Station, shows the aurora australis as it streams across the Earth’s atmosphere as the station orbited 271 miles above the southern Indian Ocean in between Asia and Antarctica. Named for the Roman goddess of dawn, the aurora is a captivatin
2021年7月1日至7月12日，美国西南部遭遇前所未有的热浪，NASA Aqua卫星上搭载的AIRS仪器收集了大气和地表的温度读数。 视频来源：NASA/JPL-Caltech 一台科学仪器绘制了 7月初笼罩在美国西南部上空的高压穹顶，而另一台则记录了地表温度。 就在太平洋西北部遭遇破纪录的高温几周后，另一波热浪袭击了美国西南部。这场于7月7日左右开始的热浪，在加利福尼亚州、内华达州、亚利桑那州北部和犹他州南部追平或打破了多项历史记录。 两台仪器——搭载在Aqua卫星上的NASA的大气红外探测器（AIRS）和NASA在空间站上的生态系统太空热辐射计实验（ECOSTRESS）——跟踪了热浪，提供
从天空上看，南极洲冰盖可能看起来像一个平静的、永久的冰毯，已经覆盖南极洲数百万年了。但是，冰盖最厚时可达数千米深，在其底部与大陆基岩相接处隐藏着数百个融水湖。在地表深处，一些湖泊通过水道系统不断充盈和排水，最终排入海洋。 现在，有了NASA在太空中使用过的最先进的地球观测激光仪器，科学家们改进了他们对南极西部冰盖下隐藏湖泊系统的地图，并发现了另外两个活跃的冰川下湖泊。 这项新的研究为从太空中发现新的冰川下湖泊，以及评估这一隐藏的管道系统如何影响冰块滑入南大洋的速度，增加可能改变其循环和生态系统的淡水，提供了关键的见解。 NASA的冰、云和陆地海拔卫星2号（ICESat-2），让科学家们能够精确
In this June 2021 image, our Sun’s glint beams off the Indian Ocean as the International Space Station orbited about 270 miles above the Earth near western Australia. The station orbits the Earth about every 90 minutes at a speed of more than 17,000 miles per hour. Image Credit: NASA 在这张2021年6
